Vania



May 19, 1931.. 9, JACOBS 1,806,542

BRUS H Filed Jan. 31, 1928 ooooo'ooooooooo (0000000000000 INVENTOR Patented May 19, 1931 UNITED STATES PATENT OFFICE FRANKLIN D. JACOBS, OF BELLEVUE, PENNSYLVANTA, ASSIGNOR TO PITTSBURGH BRUSH COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYL- VANIA BRUSH Application filed January 31, 1928.- Serial No. 250,794.

My invention consists of an improvement in reversible brushes of the kind generally used for bill posting and similar work.

Ordinarily in. such work the brush is used with an inclined handle of considerable length, the most part of the work requiring upwardly wiping strokes, with the result that but one side of the brush is used for all or the major portion of the work. Such use effects wear of the bristles principally at one side, with little or no wear or use of the bristles at the other side, which are thereby more or less useless and not utilized when the brush has become too worn for further use on the active side.

My invention has in view to provide a brush which is reversible, so as to utilize the full value and usefulness of all of the bristles, with resulting economy and greater service.

One preferred embodiment of the inven tion is illustrated in the accompanying drawings in which: 7

Fig. 1 is a perspective view of the brush;

Fig. 2 is a plan view showingthe double block head; 1

Fig. 3 is a cross section on the line IIIIII of Fig. 2; I

Fig. 4 is a cross section on the line IVIV of Fig. 2;

Fig. 5 is an edge view of the head block;

Fig. 6 is a plan view of the head block;

Fig. 7 is an enlarged sectional view like Fig. 3, showing the screw and bolt connection for the compound block head.

The brush block A is made of suitable hard wood as maple, having bristles 2 secured to its opposite rebated sides by a surrounding leather strap or band 3. Band 3 tightly embraces the bristles clear around the inner end of head A, and is secured thereto by numerous tacks or nails. brush nails are driven into the wood for a considerable depth, to ensure holding of the bristles.

These, known as coppered' in which they are secured, equidistant from the middle lineof the brush and of the handle 5. Bolts 4 are provided with inner heads 6 countersunk inwardly beyond the range of the nailing zone for the strap 3, within sockets counterbored inwardly from the outer face or edge of block A.

After the bolts 4 are inserted the counterbored holes are filled with hard wood dowels 7 covered with a filling plug of Waterproof glue 8. By such meansthe bolts are fixedly held in place against reverse movement and rigidly project through and beyond the head A. 7

"Head B is provided with a handle socket 9 angularly located so that the handle 5 may be inserted in convenient position for manipulating the brush across the surface, upwardlyfor wiping action, etc. The meeting faces or surfaces of the heads are tongued and grooved by suitable longitudinal rebating, as at 10, 11, whereby one fits againstthe other inthe manner of a socket. The head B is provided with a pair of bolt holes 12 registering with the bolts 4 and preferably countersunk at their outer ends for securing screws 13. These are tapped into the ends of bolts 4 as shown in Fig. I so that when thus tightly screwed together, the two heads are practically one rigid piece.

As thus constructed it will be seen that the brush may be used in the usual manner customary in bill posting or other similar work using one side of the brush. When such side is worn the head B may be removed and turned around and again secured in position, when the other side of the brush may be used to the destruction of the bristles.

The construction, operation and utility of the invention will be readily understood and appreciated from the foregoing description. It practically doubles the life of the brush, while rendering it easy to handle and use to the best advantage in the special kind of work for which it is designed.

What I claim is:

1. In combination, a brush head provided with a pair of holding bolts countersunk inwardly from the bristle side and projecting beyond the other side equally distant each side of its middle, a handle head having registering holes therefor, and securing screws for the outer end of the bolts countersunk in the handle head and tapped into the ends of the bolts.

2. In combination, a brush head provided with a pair of holding bolts having heads countersunk inwardly from the bristle side and projecting beyond the other side, tightly inserted plugs covering the inner ends of the bolt heads, a handle head having registering holes therefor, and securing screws for the outer ends of the bolts countersunk in the handle head.

3. In combination, an elongated brush head having its surrounding edge portion rebated and provided with a continuous series of bristles secured thereto leaving the inner middle portion of the head unobstructed, a pair of holding bolts extending outwardlj through the head equidistantly spaced from its center having heads countersunk inwardly from the face of the inner middle portion, tightly inserted covering plugs therefor having an outer sealing covering, a handle head having registering holes engaging the bolts and countersunk at their outer ends and provided with an inclined handle socket, securing terminal screws countersunk 1n the handle head and tapped into the outer ends of the bolts, the contacting faces of the brush head and handle head having longitudinal registering rebated portions adapted to facilitate interfitting application of one to the other and to maintain alinement between them.

In testimony whereof I hereunto affix my signature.

FRANKLIN D. JACOBS. 

